Table 2 The chemical, physical, and mechanical properties of the employed cement and FA (according to the manufacturers)

SiO₂

20.65

60.28

Al₂O₃

4.4

28.59

Fe₂O₃

5.05

4.99

Total SiO₂ + Al2O₃ + Fe₂O₃

30.1

93.86

CaO

62.20

2.38

Na₂O

0.38

0.48

MgO

1.90

2.92

Loss on Ignition

1.34

–

Insoluble Residue

0.88

1.1

Physical and mechanical properties

 Specific gravity

3.15

2.3

 Specific surface area (cm²/g)

3500

4500